Real-Time Image Fusion Involving Diagnostic Ultrasound

Ewertsen, Caroline; Săftoiu, Adrian; Gruionu, Lucian Gheorghe; Karstrup, S; Nielsen, Michael Bachmann

doi:10.2214/ajr.12.8904

Cited by 111 publications

(91 citation statements)

References 56 publications

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“…[18][19][20]. We selected patients from grade 1 to 3 excluding patients with severe osteoarthritis (grade 4) and without carrying out stratification of patients.…”

Section: Patientsmentioning

confidence: 99%

In vivo feasibility of real-time MR–US fusion imaging lumbar facet joint injections

Sartoris

Orlandi²,

Corazza

et al. 2017

J Ultrasound

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Objectives Traditionally, facet joint injections (FJI) are performed under fluoroscopic or computed tomography (CT) guidance, mainly due to the deep anatomical location and the presence of bony landmarks. Fusion imaging technology, which couples the ultrasound scan with the corresponding CT or magnetic resonance (MR) image obtained from the diagnostic examination and reformatted in real time according to the ultrasound scanning plane, allows to combine the panoramic view and the elevated anatomical detail of MR or CT with the ease of use of ultrasound without patient exposure to ionizing radiation. Methods Thirty eight patients (24 females; mean age ± SD: 64 ± 9 years) received MR fusion-assisted ultrasound-guided FJI of 1 ml of a mixture of local anaesthetic and corticosteroid using a ultrasound machine (Logiq E9, GE Healthcare) equipped with a GPS-enhanced fusion imaging technology which couples real-time B-mode images with those of the previous recent diagnostic MR examination. Low-dose CT needle positioning confirmation was performed in the first 28 patients. Patients' pain was recorded using a visual analogue scale (VAS), at baseline and at 2, 4 and 8 weeks.Results All fusion imaging-guided injections were performed successfully. Out of 112, 96 FJI had optimal intraarticular needle positioning (accuracy: 85.7%). Patients VAS significantly decreases after the procedure with no differences among who received CT needle positioning control and who did not receive it. No major complications were observed. Conclusions Ultrasound needle guidance with MR fusion assistance allows for safe and effective injection of degenerative facet joint disease.Keywords Facet joint Á Injection Á Fusion imaging Á Ultrasound Á Magnetic resonance Sommario Obiettivi Tradizionalmente, le iniezioni delle faccette articolari (FJI) sono state eseguite sotto guida fluoroscopica o tomografia computerizzata (TC), principalmente a causa della posizione anatomica profonda e la presenza di reperi ossei. L'imaging di fusione permette di accoppiare le immagine ecografiche con quelle TC o di risonanza magnetica (RM) corrispondenti, ottenute da un precedente esame diagnostico e riformattate in tempo reale in base al piano di scansione ecografico. Questa tecnica permette di coniugare la visione panoramica e l'elevato dettaglio anatomico della RM o TC con la praticità della guida ecografica senza ulteriore esposizione del paziente a radiazioni ionizzanti. Metodi Trentotto pazienti (24 femmine, età media ± DS: 64 ± 9 anni) hanno ricevuto FJI guidata da fusione ecografia-RM di 1 ml di una miscela di anestetico locale e corticosteroide utilizzando una apparecchiatura ecografica (Logiq E9, GE Healthcare) dotata di tecnologia fusion. Nei (2017( ) 20:23-31 DOI 10.1007 primi 28 pazienti il posizionamento dell'ago è stato confermato mediante esame TC a bassa dose. Il dolore dei pazienti è stato registrato utilizzando una scala analogica visiva (VAS), al tempo 0 e dopo 2, 4 e 8 settimane.Risultati Tutte le iniezioni fusion guidate sono state esegui...

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“…[18][19][20]. We selected patients from grade 1 to 3 excluding patients with severe osteoarthritis (grade 4) and without carrying out stratification of patients.…”

Section: Patientsmentioning

confidence: 99%

In vivo feasibility of real-time MR–US fusion imaging lumbar facet joint injections

Sartoris

Orlandi²,

Corazza

et al. 2017

J Ultrasound

View full text Add to dashboard Cite

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“…As the US probe moves, the magnitude of the electrical current in the position sensor changes with respect to the magnetic field. With this information, the position sensor unit installed in the US machine calculates the exact location of the position sensor and thus, determines the direction and position of the US transducer [3,7]. This enables the side-by-side or overlay display of real-time US images and fused CT or MR images.…”

Section: Electromagnetic Tracking-based Image Fusionmentioning

confidence: 99%

“…In addition, the positioning of patients during a realtime US examination can differ from that during the acquisition of reference data sets. Moreover, most commercially available fusion imaging systems are based on rigid registration, which lacks compensating patient respiration and movement [7]. Hence, some degree of registration error is inevitable between real-time US and fused reference data sets.…”

Section: Limitation Of Fusion Imagingmentioning

confidence: 99%

Fusion imaging of real-time ultrasonography with CT or MRI for hepatic intervention

2014

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With the technical development of ultrasonography (US), electromagnetic tracking-based fusion imaging of real-time US and computed tomography/magnetic resonance (CT/MR) images has been used for percutaneous hepatic intervention such as biopsy and radiofrequency ablation (RFA). Because of the fusion imaging technique, the fused CT or MR images show the same plane and move synchronously while performing real-time US. With this information, fusion imaging can enhance lesion detectability and reduce the false positive detection of focal hepatic lesions with poor sonographic conspicuity. Three-dimensional US can also be fused with realtime US for the percutaneous RFA of liver tumors requiring overlapping ablation. When fusion imaging is not sufficient for identifying small focal hepatic lesions, contrast-enhanced US can be added to fusion imaging.

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“…Its first clinical use was reported for analysis of lesions or tumours of the liver [3], breast [4], and prostate [5]. Since then an increasing number of reports have been published, primarily aiming to use a combined image modality approach for improvement of ultrasound-guided biopsies [6].…”

Section: Discussionmentioning

confidence: 99%

Transcranial color coded sonography: advanced approach using ultrasound fusion imaging

Schreiber¹,

Valdueza²,

Doepp³

2014

IJCNMH

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Background: Transcranial color-coded sonography (TCCS) is a well established method to study intracranial parenchymal and vascular structures. It is, however, limited by the need to insonate through available bone windows, resulting in oblique imaging planes, which can hinder easy allocation, particularly within the brain parenchyma and limit the opportunity for direct comparison with other imaging techniques. The objective of this study was to analyze the diagnostic yield of the ultrasound fusion imaging (UFI) technique using standard diagnostic approaches.

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Real-Time Image Fusion Involving Diagnostic Ultrasound

Abstract: The recent progress of real-time ultrasound in image fusion may provide several new possibilities, including diagnosis, treatment, and follow-up of oncologic patients.

Cited by 111 publications

References 56 publications

In vivo feasibility of real-time MR–US fusion imaging lumbar facet joint injections

In vivo feasibility of real-time MR–US fusion imaging lumbar facet joint injections

Fusion imaging of real-time ultrasonography with CT or MRI for hepatic intervention

Transcranial color coded sonography: advanced approach using ultrasound fusion imaging

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